Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5719778 | Heater control apparatus for oxygen sensor | Shigenori Isomura, Tomomichi Mizoguchi, Yukihiro Yamashita, Jun Hasegawa | 1998-02-17 |
| 5570574 | Air-fuel ratio control system for internal combustion engine | Yukihiro Yamashita | 1996-11-05 |
| 5460148 | Assist air control system for internal combustion engine | Hisashi Iida, Keigi Honjoh, Kenji Ikuta, Shigenori Isomura | 1995-10-24 |
| 5445136 | Air-fuel ratio control apparatus for internal combustion engines | Yukihiro Yamashita | 1995-08-29 |
| 5441032 | Fuel injection system for multi-cylinder internal combustion engine | Kenji Ikuta, Shigenori Isomura, Keigi Honjoh | 1995-08-15 |
| 5405521 | Oxygen concentration measuring device | Yasutaka Nakamori, Tomomichi Mizoguchi, Shigenori Isomura | 1995-04-11 |
| 5390644 | Method for producing fuel/air mixture for combustion engine | Naochika Nunogaki, Minoru Ohta, Hirokatsu Mukai, Makoto Shirai, Shigenori Isomura +3 more | 1995-02-21 |
| 5390491 | Ignition timing control system for internal combustion engine | Yukihiro Yamashita | 1995-02-21 |
| 5385133 | Fuel injection system for internal combustion engine | Kenji Ikuta, Shigenori Isomura | 1995-01-31 |
| 5363832 | Fuel vapor purging control system with air/fuel ratio compensating system for internal combustion engine | Hisashi Iida, Toshio Kondo, Shigenori Isomura | 1994-11-15 |
| 5317909 | Abnormality detecting apparatus for use in fuel transpiration prevention systems | Jun Yamada, Shuji Sakakibara, Yoshihiro Okuda, Tomomi Eino, Hisashi Iida +1 more | 1994-06-07 |
| 5284050 | Self-diagnosis apparatus in system for prevention of scattering of fuel evaporation gas | Hisashi Iida, Toshio Kondo, Shigenori Isomura | 1994-02-08 |